MPEC 2021-L92 : 2021 LR2
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M.P.E.C. 2021-L92 Issued 2021 June 9, 11:09 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 LR2
Observations:
K21L02R C2021 06 05.39748016 00 46.098-01 17 47.04 20.95GVEL092F51
K21L02R* C2021 06 07.40167415 58 16.357+00 42 00.87 21.37wUEL092F51
K21L02R C2021 06 07.41371415 58 15.174+00 42 39.12 21.26wUEL092F51
K21L02R C2021 06 07.42574515 58 13.996+00 43 17.53 21.22wUEL092F51
K21L02R C2021 06 07.43778915 58 12.839+00 43 55.80 21.86wUEL092F51
K21L02R ^C2021 06 08.26835215 57 26.347+01 26 05.04 21.41GVEL092568
K21L02R ^C2021 06 08.26933615 57 26.263+01 26 07.93 21.83GVEL092568
K21L02R ^C2021 06 08.27031715 57 26.184+01 26 10.81 21.70GVEL092568
K21L02R ^C2021 06 08.27132215 57 26.100+01 26 13.72 21.10GVEL092568
K21L02R KC2021 06 09.31596315 56 23.97 +02 13 46.1 21.06GVEL092V06
K21L02R KC2021 06 09.31962515 56 23.68 +02 13 55.4 21.64GVEL092V06
K21L02R KC2021 06 09.32328515 56 23.40 +02 14 04.9 21.56GVEL092V06
K21L02R KC2021 06 09.32694415 56 23.13 +02 14 14.5 21.48GVEL092V06
K21L02R KC2021 06 09.33362 15 56 22.70 +02 14 32.1 21.7 RoEL092691
K21L02R KC2021 06 09.37850 15 56 19.47 +02 16 27.6 21.3 RoEL092691
Observer details:
568 Mauna Kea. Observers R. Wainscoat, L. Wells, T. Burdullis. Measurers R.
Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch. Observer A. F. Tubbiolo.
0.9-m f/3 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau,
J. Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier. 1.8-m Ritchey-Chretien
+ CCD.
V06 Catalina Sky Survey-Kuiper. Observer R. A. Kowalski. Measurers E. J.
Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.55-m reflector +
1K CCD.
Orbital elements:
2021 LR2 Earth MOID = 0.0338 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 294.38596 (2000.0) P Q
n 0.96144296 Peri. 244.97552 -0.63285988 -0.75236450
a 1.0166864 Node 245.54145 +0.76287097 -0.56553836
e 0.2349492 Incl. 11.58855 +0.13234901 -0.33780768
P 1.03 H 25.03 G 0.15 U 6
Residuals in seconds of arc
210605 F51 0.0 0.0 210608 568 0.0 0.0 210609 V06 0.3- 0.0
210607 F51 0.0 0.2+ 210608 568 0.0 0.0 210609 V06 0.4- 0.0
210607 F51 0.0 0.0 210608 568 0.0 0.0 210609 V06 0.3- 0.1+
210607 F51 0.0 0.0 210608 568 0.0 0.0 210609 691 0.0 0.2-
210607 F51 0.1+ 0.2- 210609 V06 0.2- 0.1+ 210609 691 0.8+ 0.1-
Ephemeris:
2021 LR2 a,e,i = 1.02, 0.23, 12 q = 0.7778
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 05 10 01 44 10.6 -60 42 43 0.05915 1.0012 80.0 96.6 22.4
...
2021 05 25 16 39 03.9 -28 34 08 0.04823 1.0603 169.4 10.1 19.2
...
2021 06 02 16 06 41.6 -05 54 57 0.07906 1.0896 161.9 16.8 20.6
...
2021 06 08 15 57 39.1 +01 13 18 0.1076 1.1104 151.0 26.3 21.6
2021 06 09 15 56 42.1 +02 00 30 0.1126 1.1137 149.6 27.5 21.7
2021 06 10 15 55 52.3 +02 42 48 0.1177 1.1171 148.2 28.6 21.9
...
2021 06 16 15 52 55.0 +05 38 21 0.1492 1.1363 141.4 33.9 22.6
...
2021 06 24 15 52 53.1 +07 21 23 0.1933 1.1599 134.4 38.8 23.3
...
2021 07 09 16 00 19.1 +07 25 46 0.2807 1.1976 124.3 44.5 24.4
M. P. C. Staff (C) Copyright 2021 MPC M.P.E.C. 2021-L92
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